Something wrong with Kubuntu Driver Manager

Help
1

I’m not sure if it’s the right place to get help so sorry if I came to the wrong place;

$ sudo kubuntu-driver-manager 
Identified face as fang
Traceback (most recent call last):
  File "/usr/bin/software-properties-qt", line 146, in <module>
    app = SoftwarePropertiesQt(datadir=data_dir, options=options, file=afile, attachWinID=attachWinID)
  File "/usr/lib/python3/dist-packages/softwareproperties/qt/SoftwarePropertiesQt.py", line 164, in __init__
    self.show_distro()
    ~~~~~~~~~~~~~~~~^^
  File "/usr/lib/python3/dist-packages/softwareproperties/qt/SoftwarePropertiesQt.py", line 376, in show_distro
    child.setCheckState(Qt.PartiallyChecked)
                        ^^^^^^^^^^^^^^^^^^^
AttributeError: type object 'Qt' has no attribute 'PartiallyChecked'
Segmentation fault

maybe there’s something wrong with Qt?

2

Probably not the right place as this looks like a Kubuntu issue. That said, a lot of people use Kubuntu around here, so they may know.

Just in case, also try:

2 Likes
3

Kubuntu’s driver Manager isn’t a KDE tool, so you probably will want to seek assistance from them.

But sliding my Kubuntu Forums hat on, since I am here :smiley: :

Which Kubuntu release?

Can you access this from System Settings?

The Driver Manager is just a tab in the Software Sources tool. The command you used is simply a script that opens this to that tab. Maybe this application doesn’t like being started with sudo indirectly like this.

So try this instead, if accessing the Driver Manager from System Settings does not work :

sudo software-properties-qt
1 Like
4

I can’t access it from anywhere, including system settings…

Kubuntu 25.04 on x64

And I got exactly the same result as I run software-properties-qt

`

fang@lenovo-82xf:~$ sudo software-properties-qt
Identified face as fang
Traceback (most recent call last):
File “/usr/bin/software-properties-qt”, line 146, in
app = SoftwarePropertiesQt(datadir=data_dir, options=options, file=afile, attachWinID=attachWinID)
File “/usr/lib/python3/dist-packages/softwareproperties/qt/SoftwarePropertiesQt.py”, line 164, in _init_
self.show_distro**()**
~~~~~~~~~~~~~~~~^^
File “/usr/lib/python3/dist-packages/softwareproperties/qt/SoftwarePropertiesQt.py”, line 376, in show_dis
tro
child.setCheckState(Qt.PartiallyChecked)
^^^^^^^^^^^^^^^^^^^
AttributeError: type object ‘Qt’ has no attribute ‘PartiallyChecked’
Segmentation fault

`

Thank you!

5

I can’t reproduce this, so I myself have no idea on this one.

6

I had this exact issue after disabling a source in Other Software. I disabled the third source you see here, “Automatically generated…”:

image
image1122×468 38.9 KB

And then was unable to launch the Driver Manager / Software Sources app. To fix it, I re-enabled the source manually by editing /etc/apt/sources.list.d/ubuntu.sources. I found the entry for the disabled source:

Types: deb
URIs: http://us.archive.ubuntu.com/ubuntu
Suites: plucky plucky-updates plucky-backports
Components: main universe restricted multiverse
Signed-By: /usr/share/keyrings/ubuntu-archive-keyring.gpg
Enabled: no

And I changed “Enabled: no” to “Enabled: yes”. After that, I was able to launch the application as normal.